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/*
 * Copyright 2019 and onwards Makoto Yui
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package matrix4j.utils.lang;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

public final class Preconditions {

    private Preconditions() {}

    public static  T checkNotNull(T reference) {
        if (reference == null) {
            throw new NullPointerException();
        }
        return reference;
    }

    public static  T checkNotNull(@Nullable T reference,
            @Nonnull Class clazz) throws E {
        if (reference == null) {
            final E throwable;
            try {
                throwable = clazz.newInstance();
            } catch (InstantiationException | IllegalAccessException e) {
                throw new IllegalStateException("Failed to instantiate a class: " + clazz.getName(),
                    e);
            }
            throw throwable;
        }
        return reference;
    }

    public static  T checkNotNull(@Nullable T reference,
            @Nonnull String errorMessage, @Nonnull Class clazz) throws E {
        if (reference == null) {
            final E throwable;
            try {
                Constructor constructor = clazz.getConstructor(String.class);
                throwable = constructor.newInstance(errorMessage);
            } catch (NoSuchMethodException | SecurityException e1) {
                throw new IllegalStateException(
                    "Failed to get a Constructor(String): " + clazz.getName(), e1);
            } catch (InstantiationException | IllegalAccessException | IllegalArgumentException
                    | InvocationTargetException e2) {
                throw new IllegalStateException("Failed to instantiate a class: " + clazz.getName(),
                    e2);
            }
            throw throwable;
        }
        return reference;
    }

    public static  T checkNotNull(T reference, @Nullable Object errorMessage) {
        if (reference == null) {
            throw new NullPointerException(String.valueOf(errorMessage));
        }
        return reference;
    }

    public static void checkArgument(boolean expression) {
        if (!expression) {
            throw new IllegalArgumentException();
        }
    }

    public static  void checkArgument(boolean expression,
            @Nonnull Class clazz) throws E {
        if (!expression) {
            final E throwable;
            try {
                throwable = clazz.newInstance();
            } catch (InstantiationException | IllegalAccessException e) {
                throw new IllegalStateException("Failed to instantiate a class: " + clazz.getName(),
                    e);
            }
            throw throwable;
        }
    }

    public static  void checkArgument(boolean expression,
            @Nonnull Class clazz, @Nullable Object errorMessage) throws E {
        if (!expression) {
            Constructor constructor;
            try {
                constructor = clazz.getConstructor(String.class);
            } catch (NoSuchMethodException | SecurityException e) {
                throw new IllegalStateException("Failed to get a constructor of " + clazz.getName(),
                    e);
            }
            final E throwable;
            try {
                throwable = constructor.newInstance(errorMessage);
            } catch (ReflectiveOperationException | IllegalArgumentException e) {
                throw new IllegalStateException("Failed to instantiate a class: " + clazz.getName(),
                    e);
            }
            throw throwable;
        }
    }

    public static void checkArgument(boolean expression, @Nullable Object errorMessage) {
        if (!expression) {
            throw new IllegalArgumentException(String.valueOf(errorMessage));
        }
    }

    public static void checkArgument(boolean expression, @Nullable String errorMessageTemplate,
            @Nullable Object... errorMessageArgs) {
        if (!expression) {
            throw new IllegalArgumentException(
                String.format(errorMessageTemplate, errorMessageArgs));
        }
    }

}